The future of clean energy technology is already here, according to Dan Kammen, Jigar Shah and Joe Fargione — panelists at The Nature Conservancy’s “Future of Nature” forum on energy held Monday, May 13 in Boston. These experts — representing academia, business and conservation — agreed: The world has all the technology we need for a clean energy future. The challenge is implementing it at scales that can make a difference for controlling the global greenhouse gas emissions caused by energy production.

And we need this now more than ever. Last week, scientists measured 400ppm of CO2 in Earth’s air — a level that hasn’t existed in millions of years, before humans were around. With the global population expected to exceed 9 billion by 2050 and no uniformed effort to control emissions in sight, CO2 measures will likely surpass the 400ppm marker very soon.

Moderator Anthony Brooks of Boston radio station WBUR — a co-sponsor of the event — asked the panelists: Can renewable energies help make a dent in climate change while still meeting our energy needs? Here’s what they had to say.

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